You may not be old enough to drive, but that doesn't mean you can't
satisfy your need for speed. Author and physics teacher Bobby Mercer
shows how to use mousetraps, rubber bands, chemical reactions, gravity,
and air pressure to power fast-moving vehicles. Each of the 25
easy-to-build racecars is constructed for little or no cost using
recycled and repurposed materials. Retrofit a toy car with a model plane
propeller to make an air-powered Prop Car. Turn a potato chip can, a
rubber band, and weights into a Chip-Can Dancer. Or use an effervescent
tablet in a small canister as an impressive rocket engine for a Mini Pop
Car. Every project in The Racecar Book contains a materials list and
detailed step-by-step instructions with photos for easy assembly. Mercer
also includes explanations of the science behind each racecar, including
concepts such as friction, Newton's laws of motion, kinetic and
potential energy, and more. These projects are perfect for science fairs
or design competitions, or just having fun!